IRC Yearbook 2009

IRC YEARBOOK 2009
Accuracy of rated data
Rule 19, Rating Review, deﬁ nes the limits of accuracy for
the various rated data parameters. In the case of protest,
these limits then deﬁ ne the validity or otherwise of the
certiﬁ cate. These limits are NOT tolerances to be used
when rating a boat. They are solely for the purposes
stated in the Rules: rating reviews and protests. Boats
must not therefore be measured and then the tolerances
deducted from each measurement. That could
lead to the withdrawal of a boat’s
certiﬁ cate under Rule 9.7 and
possible further action
under the RRS.
Sail inventory
One valid
Rule 26.1.5 summaries the limitations on sails that may be carried.
certiﬁ
cate only
A particular point, often misunderstood is the restriction in paragraph (d)
Rule 9.2 now says:
A boat shall not hold more
of this Rule on changing sails during a regatta run on consecutive days.
cate at any time
than one valid IRC rating certiﬁ
Paraphrasing this, the meaning is that the sail inventory that you carry
except as permitted by Rule 9.2.1. Rule 9.2.1
for the ﬁ rst race is then the inventory for the whole regatta. So, no
cate.
then describes a short-handed IRC certiﬁ
leaving the heavy sails ashore on light days and vice versa, swapping
It is thus now possible to hold more than one
spinnakers for different weather or course conditions, changing to an
certiﬁ
cate at a time but the second one may
‘offshore’ mainsail, etc.
only be used for short-handed (ie maximum
The only exception to this is signiﬁ cant damage. While there is no
NOT
permitted to
of two crew) races. It is still
formal requirement to seek approval for a change of inventory after cates and to pick the
hold a number of certiﬁ
damage, a prudent skipper might wish to advise the race committee
best one for the conditions of a particular race.
to avoid potential future problems.
Change of ownership
On change of ownership of a boat with a current IRC
rating, as well as re-registering the certiﬁ cate to keep it
valid, it is prudent to check that the certiﬁ cated data is
correct. For instance, it is not unknown for internal ballast
to ‘disappear’! Similarly, while the boat may come with a
full inventory of overlapping headsails, the boat may not
be rated for the largest of these. Or it may be rated for a
single furling headsail. Check!
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